Search Results for: Oil

Abstract: A utilização desenfreada de agrotóxicos está contribuindo com o agravamento da poluição ambiental, pois na maioria das vezes a forma de aplicação desses produtos facilita a contaminação de solos e recursos hídricos, afetando espécies aquáticas e terrestres, podendo ainda interferir na saúde das pessoas que estão envolvidas diretamente e indiretamente com a aplicação. Considerando …

Abstract: Like any technology, agricultural biotechnologies that use genetically modified organisms (GMOs) have their opponents and supporters. For their proponents, the significant benefits of GMOs for humans, animals and the environment clearly outweigh any risks that are inherent with new technologies (Jauhar, 2006; Reis et al, 2006). For example, crops could be genetically engineered to …

Abstract: Glyphosate-based herbicides are leading products of the current pesticide market, and this trend has further strengthened outside Europe with the spread of glyphosate-tolerant GM crops. Glyphosate forms complexes with metal ions (Al, Fe, Mn, Zn) in the soil, but precipitation washes it into deeper soil layers. Its primary metabolite, AMPA, is more mobile than …

Abstract: Nitrogen losses from the soil-plant system may be influenced by herbicide applications. In order to evaluate N loss in brachiaria (Brachiaria decumbens) after application of the herbicides glyphosate and glufosinate-ammonium, an experiment was carried out in a greenhouse as a completely randomized design, with three treatments and six replicates. Treatments were as follows: i) …

Introduction: Foods containing genetically modified (GM) ingredients are on sale in Irish shops. In a survey of soya based foods undertaken by the Food Safety Authority of Ireland in 2002, over a half of the products tested contained genetically modified ingredients. Such products included baby foods and soya desserts. This soya bean contains a foreign …

Introduction: Residues of the commonly-used herbicide glyphosate have been found in a variety of fruits and vegetables. Residues can be detected long after glyphosate treatments have been made. Lettuce, carrots, and barley planted a year after glyphosate treatment contained residues at harvest. In California, where reporting of pesticide-caused illnesses is more comprehensive than in other …

Abstract: Elevated atmospheric CO2 concentrations will cause plants to grow faster, lower nitrogen content per unit of plant tissue, and generate higher carbon to nitrogen (C/N) ratios. We hypothesize that production of transgenic proteins will be reduced, thus reducing the efficiency of Bacillus thuringiensis (Bt) transgenes against insect populations. Commercially available transgenic cotton plants expressing …

Abstract: BACKGROUND. Glyphosate [N-(phosphonomethyl)glycine] is a herbicide used widely throughout the world in the production of many crops and is heavily used on soybeans, corn and cotton. Glyphosate is used in almost all agricultural areas of the United States, and the agricultural use of glyphosate has increased from less than 10 000 Mg in 1992 …